SKU: 35419589943

HKM-571859 High-Power 3W COB Surface Light Source with 120° Beam Angle and 120LM/W Luminous Efficiency

Sale price$58.49 Regular price$64.99
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Description

HKM-571859 High-Power 3W COB Surface Light Source with 120° Beam Angle and 120LM/W Luminous EfficiencyExperience the versatility and efficiency of the HKM 571859 High Power 3W COB Surface Light Source. This cutting edge lighting solution is designed to provide bright and reliable illumination, making it perfect for a variety of applications. With a luminous efficiency of 120LM W and a wide beam angle of 120, this product delivers a powerful performance that enhances visibility in any setting. The compact design features an overall size of 50*7mm with

Experience the versatility and efficiency of the HKM-571859 High-Power 3W COB Surface Light Source. This cutting-edge lighting solution is designed to provide bright and reliable illumination, making it perfect for a variety of applications. With a luminous efficiency of 120LM/W and a wide beam angle of 120°, this product delivers a powerful performance that enhances visibility in any setting.

The compact design features an overall size of 50*7mm with a luminous surface size of 28*6mm, allowing for easy installation in spaces ranging from residential to commercial environments. The HKM-571859 boasts a color rendering index of 80, ensuring accurate color representation to bring your space to life.

Operating within a forward and backward voltage range of 9-11V, and a rated current of 300mA, this COB light source is engineered for durability and consistency. The heavy gold aluminum substrate and gold wire contribute to its impressive thermal resistance of ≤ 5°/W, ensuring it operates effectively even at maximum junction temperatures of 150°.

With a color tolerance of 5 SDCN, the HKM-571859 maintains its integrity over time, as demonstrated by its 85% performance after 1000 hours of regular aging and an impressive 97% after 6000 hours. Whether you need focused lighting for detailed tasks or broader illumination for general use, this light source is equipped to meet your requirements.

Elevate your lighting solutions with the HKM-571859 High-Power 3W COB Surface Light Source, designed to offer long-lasting efficiency and quality.

Product information:
Power: 3
Overall size: 50*7(mm)
Luminous surface size: 28*6(mm)
Power: 3(W)
Color rendering index: 80
Luminous flux: 120LM/W(lm)
Forward Voltage: 9-11(V)
Backward voltage: 9-11(V)
Electrostatic breakdown voltage (ESD):9-11(V)
Rated current: 300ma(A)
Chip size: 15*30(mil)
Wire material: gold wire
Substrate material: heavy gold aluminum
Luminous angle: 120(°)
Luminous efficiency: 120(lm/W)
Color tolerance: 5(SDCN)
Thermal resistance: ≤ 5(°/W)
Maximum allowable junction temperature: 150(°)
Voltage temperature coefficient: 150(mV/°C)
1000 hours regular aging: 85(%)
6000 hours regular aging: 3(%)



Packing list:
COB Light source *1/*5/*10



Product Image:


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SKU: 35419589943

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4.8 ★★★★★
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Lize Guerin
Chelsea, US
★★★★★ 5
Love it
This has become my everyday sunscreen and I genuinely love it. It’s lightweight, super hydrating, and doesn’t leave that greasy feeling most sunscreens do. It blends in beautifully and sits perfectly under makeup, which is a must for me. I also have sensitive skin and this hasn’t caused any irritation or breakouts at all. It just feels smooth, comfortable, and easy to wear daily. One of those products you actually look forward to using.
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Reviewed in the United States on May 3, 2026
A
Verified Purchase
Amazon Customer
Houston, US
★★★★★ 3
Don’t buy
All it did was moisturize and it’s super thing and just liquid. I highly doubt this is actually protecting my skin from the sun. Leaves no cast at all though
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
K
Verified Purchase
Kgg
Dallas, US
★★★★★ 5
Lightweight No-Cast Collagen Sunscreen SPF 50+ PA++++ – Daily UVA & UVB Protection
This sunscreen offers reliable broad-spectrum protection with SPF 50+ and PA++++, helping shield the skin from harmful UVA and UVB rays. Its lightweight, moisturizing formula absorbs quickly without leaving a white cast, making it suitable for all skin tones. Infused with collagen, it helps keep the skin feeling soft and hydrated throughout the day. The non-greasy finish works well for daily use, leaving the skin with a natural, smooth appearance. A practical choice for anyone looking to combine sun protection with lightweight hydration in one step.
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Reviewed in the United States on May 31, 2026
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Verified Purchase
Logan Calhoun
Carnegie, US
★★★★★ 5
A solid story that flowed well.
Format: Kindle
Overall an enjoyable tale besides one character I liked being in the story and then shortly after being out of the story. But it was a fun read with great characters but so many that weren't given enough time to shine at all or be seen more. Looking forward to the next in the series.
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Reviewed in the United States on April 27, 2026
D
DanaeReads
New York, US
★★★★★ 4
This spin-off debut is a satisfying fix my fellow cozy flapper-era amateur-sleuth addicts!
Format: Kindle
4.25 I have no excuse. I’ve never read or listened to “The Scottish Ladies' Detective Agency” even though somebody physically gave me the book. In my defense, my kindle app and audiobooks are more friendly for ADHD and pain management and I haven’t read a physical book in years. I was starting fresh with Lady Poppy and this first book launches a spinoff series. Who doesn’t love a historic mystery, especially set in Scotland? This has many of the hallmarks of a series in the genre and I never know whether to complain about the repetition—or even near clones—or celebrate the opportunity to feed my addiction. In some respects, I found this refreshing because Poppy is wealthy. It seems like every other female sleuth in the 1920s and 30s has an aristocratic (or aristocratic adjacent) background but is now dirt poor. There are enough stresses about money these days that I prefer to focus on the murder. This is a tangled web of a story and I thought it clever and I liked Poppy if for no other reason than she has a fantastic lab and appreciates him (and other dogs). Of course, Major Charlie (extra points for the awesome name) saves the day a time or two. Oh and Poppy having a law degree, even when women couldn’t practice law, was a great asset and very cool. That said, if she wasn’t a Lady and very attractive, she would not have gotten away with her brazen interference (even in comparison to other amateur sleuths). In terms of the audiobook version, the narrator was good in most respects. The voice of the handsome inspector (among other male characters) was so deep and low that it drove me a little crazy. Lady Constance also sounded masculine and I had to stop and think every time I heard that voice which was contrary to the character. Overall, she did a good job on the various Scottish accents, including Poppy’s sophisticated mix of the King ‘s English and a Scottish lilt. Otherwise, this mystery was clever and I’m sad that I have to wait for the next one. I would wait for several so that I could finally binge them, but I’m not that strong. P.S. Apparently, neither Lydia Travers nor “The Scottish Ladies' Detective Agency” are even recognized by Libby (which recognizes practically every author) and the books are only available through Kindle Unlimited or buying them or the audiobooks, thus the reason I have not read them. Maybe one day! I am reviewing advanced copies of this book and audiobook given to me by the publisher. All views are strictly my own. . #DeathattheHighlandLoch #NetGalley #bookreview #ADHDreader #lydiatravers #Scottishladydetective #Scotland #historicmystery
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Reviewed in the United States on May 26, 2025

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